Cold laser therapy is also known as low-level laser therapy (LLLT), low-power laser therapy (LPLT), soft laser biostimulation and photobiomodulation. It can deliver non-thermal photons of light to the body to help heal injured cells.
Generally, surgical lasers used to destroy tumors tend to heat the tissue. Cold laser therapy is called “cold” because the low levels of light aren’t enough to heat your body’s tissue.
Cold laser therapy employs the light with a wavelength in the red to near-infrared region of the spectrum. These wavelengths have the ability to penetrate the skin and soft or hard tissues.
IMPROVES BLOOD CIRCULATION
Cold laser can directly irradiate on the lesion part with decreased blood flow. It can stimulate blood cells and improve blood circulation. In this way, red blood cells can supply sufficient oxygen and nutrition to the problem areas, improving the metabolism and relieving the symptoms.
Cold laser can enhance the activity of phagocytes and boost the immune system. People can use cold laser therapy to diminish the inflammation of problem areas quickly.
The low-level laser can inhibit the nerves transmitting the information of pain to the brain. It also increases the release of modulation chemicals such as serotonin and endorphin further relieving pain.
ACCELERATES TISSUE REPAIR
Laser irradiation can accelerate the growth of new blood vessels and granulation tissue, and improve protein-synthesis. Cold laser allows more oxygen to be supplied to damaged tissue cells, accelerating the production, deposition and cross-linking of collagen fibers.
RECENT STUDIES OF COLD LASER THERAPY
🔶 2017 – American College of Physicians Guidelines include a “strong recommendation” for Cold Laser Therapy as a non-invasive Treatments for Acute, Subacute & Chronic Low Back Pain.
🔶 2016 – Cold Laser Therapy for chronic non-specific low back pain: a systematic review and meta-analysis of randomised controlled trials found “moderate quality of evidence” and “clinically important benefits” in the short term.
🔶 2011 – British Medical Journal (BMJ) Clinical Guidelines for tennis elbow “Likely to be beneficial for short-term pain relief & improvement of function”.
🔶 2010 – The International Association for the Study of Pain (Global Task Force on musculoskeletal pain) recommend laser for myofascial pain syndrome.
🔶 2010 – British Journal of Sports Medicine, systematic review of surgical and conservative interventions for frozen shoulder found “strong evidence” for Cold Laser Therapy.
🔶 2010 – American Physical Therapy Association guidelines recommend Cold Laser Therapy for Achilles tendonitis.
🔶 2009 – The Lancet “Cold Laser Therapy reduces pain immediately after treatment in acute neck pain and for up to 22 weeks in patients with chronic neck pain”.
🔶 2008 – World Health Organisation (Bone and Joint Task Force) recommended Cold Laser Therapy for neck pain.